9700/12 Biology Oct Nov 2014 Online Test | Cambridge AS and A Level MCQ
CIE
AS & A Level
Biology (9700)
بهمن
2014
مشاهده نمونه سوال
شامل مباحث:
AS Level
تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
60 دقیقه
پیش نمایش صفحه اول فایل
Gama Admin An aphid, such as a greenfly, uses a tubular mouthpart called a stylet to feed on nutrients in the plant.
It inserts the stylet through the surface of a stem or leaf.
When a stylet is cut near the aphid’s head, leaving the stylet in the plant, a liquid with a low water potential continues to flow out of the plant.
Which statement explains this?
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